Current-corrector.



N. C. DARBY.

CURRENT CORRECTOR.

APPLICATION FILED JULY3I, 1913.

1,143,041. S Patented June 15, 1915.

WITNESSES a W 4H0 NEV INVENTOR UNITED STATES PATENT OFFICE.

NORMAN C. DARBY, OF EAST ORANGE, NEW JERSEY, ASSIGNOB OF ONE-HALF TO BUDOLBH MIEHLING, OF NEW YORK, N- Y.

GURRENT-CORRECTOR.

Specification of Letters Patent.

Patented June 15, 1915.

Application filed July 81, 1913. Serial No. 782,212.

To all whom it may concern Be it known that I, NORMAN C. DARBY, a citizen of the United States, residing at East Orange, in the county of Essex and State of New Jersey, have made new and useful Improvements in CLHIGHtrCOIIQCtOlS, of which the following is a full, clear, and exact description.

This invention relates to current correctors and the object of the invention is to provide means for producing from alternating current circuits continuous current effects, such as are necessary, for example, for operation of arc lights, for charging accumulators, etc.

In the accompanying sheet of drawings the invention is illustrated, more or less diagrammatically, in connection with an arc light; in the views of such drawings, wherein like reference characters refer to similar parts-Figure 1 represents the relative location of the several elements during operation of the mechanism; while Fig. 2 represents the relative location of the several elements at a different period of operation of the mechanism.

A coil 1, suitably supported in position, is provided wit-h a movable laminated core 2; a post 3 is provided with a transversely extending screw 4: having an end forming a contact piece 5, the screw being adjustable relatively to the post and held in position in any suitable manner as by means of a locknut 6; adjacent the post is a resilient member 7 having a contact piece 8 thereon adapted to engage the contact piece 5 of the screw 4, the normal position, i. 6. when left to itself, of the said member being shown in Fig. 2 as remote from the said screw; the core 2 of the coil 1 bears against the said member 7 and a spring 9 maintains the core in such relation and also maintains, under certain conditions, the said member 7 adjacent the said screw 4 with the pieces 5 and 8 in contact; the core is provided with a lug or offset 10 against which the spring 9 bears in order to bring about the described relation.

The leads from the alternating current supply are designated 11, 12, the lead 11 being connected to the post 3 and the lead 12 being connected to the end 13 of the coil 1.

For the purpose of describing the invention an arc lamp 14 is taken, being shown connected in series with a resistance 15, one

end of the resistance being connected to the said end 13 of the coil; one terminal of the lamp is connected to the end 16 of the coil 1, the said end being also connected to the resilient member 7, as by means of a wire 17.

hen the source of alternating current is closed the current flows through the coil 1 (Fig. 1) since the member 7 is in contact with the post 3 and the current also flows through the lamp 14; the flow of current through the coil brings the core 2 into the coil and breaks the contact between the member 7 and the post 3, the circuit of the coil and lamp with the supply being opened; the core 2 returns immediately to the position shown in Fig.1, under the influence of nating current, a coil, a core movable longitudinally of said coil under the influence of the current passing therethrough, a translating device, the said device and coil being in shunt with each other and in circuit with the said supply, and means controlled by the movement of the said core for periodically opening the said supply circuit.

2. In combination with a source of alternating current, a coil, a core movable longitudinally of said coil under the influence of the current passing therethrough, a translating device, the said device and coil being adapted to be actuated by current from the said source, and means controlled by the movement of the said core for periodically opening the circuit of the said source, the device and coil being connected at all times in shunt relation.

3. In combination with a source of alternating current, relatively movable contacts, a coil, a core movable lon 'tudinally of said coil under the influence o the current passing therethrough, a translating device connected in shunt with the said coil, the device and coil being actuated by the said supply, the said contacts being positioned between the said supply and the device and coil, and means cooperating with the said core for periodically moving the said contacts relatively to each other whereby the circuit to the coil and device is periodically made and broken.

4. In combination with a source of alternating current, a coil, a core movable longitudinally of said coil under the influence of the current passing therethrough, a translating device, the said device and coil being connected in shunt and being in circuit with the said supply, and adjustable means controlled by the movement of the said core for periodically opening and closing the circuit to the said device and coil.

5. A current rectifier, suchas described, comprising a coil, a core movable longitudinally of said coil under the influence of the current passing therethrough, contact pieces for engagement with each other, and means cooperating with the said core for bringing the core into engagement with one of the said pieces whereby they are maintained in engagement, the movement of the core under the influence of the current flowing in the coil causing the said contact pieces to separate.

Copies of this patent may be 6. A current rectifier, such as described, comprising a coil, a core movable longitudinally of said coil under the influence of the current passing therethrough, relatively movable contact pieces, a spring for maintaining the core in a certain position with the said pieces in engagement, the movement of the core under the influence of the current flowing through the coil causing the said contact pieces to lie remote from each other.

7. A current rectifier, such as described, comprising a coil, a core movable longitudinally of said coil under the influence of the current passing therethrough, relatively movable contact pieces, one of the said pieces being adjustable, a spring for maintaining the core in engagement with one of the said pieces and the said pieces in engagement with each other, the movement of the core under the influence of the current flowing through the coil causing the said contact pieces to lie remote from each other.

In testimony whereof I sign my name in presence of two witnesses.

NORMAN C. DARBY.

Witnesses:

RUDOLPH MIEHLING,

J. W. HERRMANN.

obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. 0, 

